Results 31 to 40 of about 20,949 (210)

Closing the Gaps: Integrating Biological, Ecological and Taxonomic Data to Support the Identification and Conservation of the Atlantic Pygmy Devil Ray (Mobula hypostoma)

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 5, May 2026.
ABSTRACT The Atlantic pygmy devil ray (Mobula hypostoma) is an endangered mobulid species whose conservation is hindered by taxonomic confusion and significant gaps in ecological and life history knowledge. Here, we present an integrative study that clarifies the species' taxonomic status, updates its distribution and synthesizes new and existing data ...
Atlantine Boggio‐Pasqua   +35 more
wiley   +1 more source

Disentangling conservation asymmetries through socio‐economic transboundary factors across the Alto Paraná Atlantic Forest of South America

open access: yesPeople and Nature, Volume 8, Issue 5, Page 1328-1348, May 2026.
Abstract Ecoregions are often defined based on homogeneous biophysical and ecological conditions and are optimal spatial units for designing conservation strategies. However, transboundary ecoregions such as the Alto Paraná Atlantic Forest (APAF) experience asymmetrical conservation outcomes, understood here as cross‐border differences, resulting from ...
Lía Montti   +16 more
wiley   +1 more source

Synapsids and sensitivity: Broad survey of tetrapod trigeminal canal morphology supports an evolutionary trend of increasing facial tactile specialization in the mammal lineage

open access: yesThe Anatomical Record, Volume 309, Issue 4, Page 864-911, April 2026.
Abstract The trigeminus nerve (cranial nerve V) is a large and significant conduit of sensory information from the face to the brain, with its three branches extending over the head to innervate a wide variety of integumentary sensory receptors, primarily tactile.
Juri A. Miyamae   +4 more
wiley   +1 more source

High Geomagnetic Reversal Frequency During the Middle to Late Ediacaran (∼570 Ma) Constrained by Integrated Magneto‐ and Cyclostratigraphy

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract The Ediacaran–Cambrian (∼635–539 Ma) geomagnetic field is characterized by unusually high reversal rates and markedly weakened field strength. Estimates of these reversal frequencies can reveal key aspects of deep Earth dynamics and their potential influence on surface environments and early complex life.
J. W. L. Afonso   +12 more
wiley   +1 more source

Sulfur‐Rich μ‐O Diiron Catalyst for Electrochemical Hydrogen Production

open access: yesEuropean Journal of Inorganic Chemistry, Volume 29, Issue 8, 10 March 2026.
A diferric μ‐oxido complex supported by a sulfur‐rich scaffold acts as a proton‐reduction electrocatalyst for H2 production via a μ‐hydroxido species. An aminodithiophenolate scaffold with an NS2 donor set supports diiron complex formation. The diferrous precursor activates O2, giving rise to a diferric μ‐oxido species, which acts as a proton‐reduction
Hugo C. Hernández‐Toledo   +7 more
wiley   +1 more source

Two new records for the flora of Paraguay: Stemodia diplohyptoides and S. lobelioides (Plantaginaceae:Gratioleae)

open access: yesNordic Journal of Botany, Volume 2026, Issue 3, March 2026.
Stemodia diplohyptoides M.M.Sosa & Dematt. and S. lobelioides Lehm. (Gratioleae, Plantaginaceae) are reported for the first time in Paraguay, found in Alto Paraná and Presidente Hayes departments, respectively. These new records extend the known geographical range of both species, representing the northern records to date, S.
Y. Carlés Bechara   +4 more
wiley   +1 more source

Plants and Insect Eggs: First Report of a Katydid Using a Fern as Host for Oviposition

open access: yesNew Zealand Journal of Botany, Volume 64, Issue 1, March 2026.
Ferns are the second most diverse lineage of vascular plants worldwide and are particularly abundant in tropical forests. However, the ecological significance of such remarkable diversity has been often underestimated. In this article, we report for the first time the observation of ferns, specifically Polytaenium cajenense (Desv.) Benedict ...
Rafael P. Farias   +5 more
wiley   +1 more source

And then there were none: decrease of origination and the decline of Conulariida

open access: yesPapers in Palaeontology, Volume 12, Issue 2, March/April 2026.
Abstract Although the evolutionary history of conulariids has been widely studied, previous works have focused mostly on limited time intervals. In this paper, we examine the diversity dynamics of the group throughout its entire history, using various mathematical approaches.
Julio Bernad   +2 more
wiley   +1 more source

Partial analyses of humeral shape in sauropodomorph dinosaurs highlight a hidden modularity and the differential evolution of sauropod bauplan‐related traits

open access: yesPalaeontology, Volume 69, Issue 2, 2026.
Abstract Sauropods are the largest‐known terrestrial animals, characterized by their columnar limbs and obligate quadrupedality. They are nested within Sauropodomorpha, a clade whose earliest representatives were, however, small bipeds. The early evolution of gigantism and quadrupedality within sauropodomorphs remains debated, since several non ...
Rémi Lefebvre   +3 more
wiley   +1 more source

Revista del Museo de La Plata.

open access: yes, 1890
Vols. 14-24 are called "segunda serie", t. 1-12; v. 25-34, "tercera serie", t. 1-10.Microfilm.Mode of access: Internet.Vol. 1 (1890)-13 (1906), in v. 13; v. 14 (1907)-24 (1919), in v. 25.Split into: Revista del Museo de La Plata.
Museo de La Plata.
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